Departamento de Física y Estructuras de Edificación
Abstract The fracture toughness of thermally modified beech (Fagus sylvatica L) and ash (Fraxinus excelsior L) wood under Mode I loading was quantified using Compact Tension (CT) specimens, loaded under steady-state crack propagation conditions. The influence of three heat-treatment levels
Abstract The term clear wood corresponds to the macroscopic scale, where the orthotropic elastic model is commonly used. This model is defined by a compliance matrix composed of nine parameters, the elongations and angular distortions of which are uncoupled. The
Abstract In this work, the identifiability of orthotropic stiffness components of clear wood from a single off-axis compression test was investigated. The material characterisation strategy was based on anisotropic elasticity. Moreover, it requires 3D full-field measurements which can be provided
Abstract The paper explores, experimentally and theoretically, the possibility of producing a novel cladding sandwich panel comprised of a low-density wood fiber (WF) core and faces made of wood-based panels. Tests on small specimens, using physical and optical devices, were
Abstract The term clear wood corresponds with the macroscopic scale, where the orthotropic elastic model is commonly used. This model is defined by a compliance matrix composed of nine parameters. The current experimental standard methods for obtaining these parameters are
Abstract The constitutive models used for wood and timber have been formulated in different scales. The term clear wood corresponds with the macroscopic scale, where the orthotropic elastic model is commonly used. That model, typically applied to local modeling (e.g.
Abstract In 1850, the Bessemer converters were able to produce mass-production inexpensive steel. This technical advance was the key point that leaded to a suddenly extended use of steel in the bridge engineering field. Consequently, timber was pushed into the
Abstract As showed in the first part of this work [1], the technical heritage prior to the 1850´s presents an important number of remarkable timber bridges, especially in the last hundred years of that period. This paper presents, in a
Abstract Thermal modification of wood is an established alternative to other preservative treatments that may be aggressive to the environment. When the use of thermally modified wood in structural applications is envisioned, the fracture properties become extremely important due to
Abstract The work explores, experimentally and theoretically, the possibility of producing a novel cladding sandwich panel comprised of a low-density wood fibres (WF) core, made with GUTEX®, and timber engineering board faces. A short discussion of the possibility of using